On 02/16/05 08:43 ET, Larry Fine said...
You could easily form a cage of aluminum window
screen, which would hold back the insulation,
but not act as a volume limiter for speakers designed
for running without an enclosure or back box.
I had to install several recessed lights that
were not insulation-contact rated in an upstairs
ceiling. I made cages from 1/4" mesh cloth to
keep the insulation 3" away. The inspector was
very impressed.
Then cover the screen/mesh material with vapour barrier (plastic sheeting) material to keep attic air and the insulation out of the back of the speaker. Vapour barrier is a low cost solution to back boxes. Just make sure that you tape all of the joints in the vapour barrier to make sure that you have no air infiltration.
Cheers
